, makers of the
world's most advanced and scalable source code analysis solution today
announced results from a new study on the security and quality of the Linux
kernel. "Version 2."
"Although the size of the Linux kernel increased over the six month study,
we noticed a significant decrease in the number of potentially serious defects
in the core Linux kernel," said Seth Hallem, CEO of Coverity .
Defect density decreased slightly by 2.

developerworks disks

NOTE: Coverity is a registered trademark, and Coverity Extend and
Coverity Prevent are trademarks of Coverity, Inc.

fat32 kernel

9, the same version
used in Red Hat Enterprise Linux 4.17 0.

fat32 jfs

6. Today, Coverity's solution is used by more than 75 leading
companies to significantly improve the quality of their software, including
Juniper Networks, VERITAS, McAfee, Synopsys, NASA, PalmOne, Sun Microsystems
and Wind River.westerndigital.com) to access a variety of financial and investor
information.

(Logo: http://www.

ext2fs compact

Linux Kernel Security and Quality Improved Dramatically in Last Six Months New Coverity Study Finds

"Although
contributors introduced new defects, these were primarily in non-critical
device drivers. In the past, many IT system administrators have
been reluctant to apply the latest software patches because of concerns that
the patches would introduce new defects.16 Smaller number
is better

More Information at LinuxWorld in San Francisco
Seth Hallem, CEO of Coverity will be giving a talk at LinuxWorld on his
four year analysis of the security and quality of the Linux kernel.

disks cvs

6.
"Coverity has worked with the kernel community to help identify a number
of longstanding correctness and security issues with the kernel," said
Andrew Morton, lead kernel maintainer of the 2. The company's storage products are marketed to
leading systems manufacturers and selected resellers under the Western Digital
and WD brand names.newscom.com/cgi-bin/prnh/20000711/WDCLOGO)

ntfs file

EST. The company produces reliable , high-performance hard
drives that keep users' data close-at-hand and secure from loss.

This category is used to collect information on different file formats for three purposes.

These purposes are Educating programmers so that they can make full use of the file systems they work with, providing reference material for compatibility and providing information for the creation of new file systems .

developerworks accessed

A summary of the findings is shown below:

Linux in Linux in Comment
December 2004 July 2005
Filesystem buffer overrun 5 0 Serious defect
Network buffer overrun 1 0 Serious defect
Lines of code 5.7 percent
increase
Total defects 985 1,008 Slight increase
in non-critical
defects
Defect density 0.coverity.

replace developerworks

The talk
will be given on August 9, 2005 at 10:15 a .

Western Digital is a registered trademark and WD and the Western Digital
logo are trademarks of Western Digital Technologies, Inc.

replace disks

6 Linux kernel. Coverity's study shows that although
new defects were introduced into the kernel, all the known potentially serious
defects were fixed. All other company and
product names are the property of their respective owners.

ext3 ntfs

2 percent from 0. in Moscone Center.

fs filesystem

12
of the Linux kernel incorporates numerous fixes relative to version 2. I appreciate the fact that
Coverity is able to determine that the kernel is free from several classes of
error and that we have the means to avoid such errors creeping into the kernel
in the future. Vendors such as Red Hat
and Novell take the base Linux kernel, often making modifications to the
software before distribution.

scenarios ntfs

Approximately 6 million lines of software were analyzed in the study. Coverity was founded in 2002 by leading Stanford University
scientists whose four-year research project resulted in a breakthrough
approach for addressing the costliest problem in the software industry.

CONTACT: media, Bret Clement of Page One PR, +1-303-462-3057, or
bret@pageonepr.
WD was founded in 1970.

disks filesystem

disc replace

, Western Digital
Corp. The investment community
conference call to discuss these results and the company's outlook will be
broadcast live over the Internet that day at 2 p.

cvs ext2fs

12 show that all critical defects have been fixed.03 million 4.
Demonstrations of Coverity 's analysis technology and explanations of the
results of Linux study are available in Coverity's booth, #859.

filesystem ext2fs

17 defects thousand
lines of code in December of 2004 to 0. That
research breakthrough allows developers to quickly and precisely eliminate
software defects and security vulnerabilities in tens of millions of lines of
new or legacy code.com, for Coverity; or Rob Rachwald, Senior Director of
Marketing, of Coverity, +1-415-613-4008, or rob@coverity. PST/5 p.

disks fs

SAN FRANCISCO, Coverity , Inc. Six months ago Coverity analyzed Linux kernel 2.m.

spec cvs

"
Coverity's study focused on the main Linux kernel.76 million 6. A report with a more
detailed description of the analysis will be available at the end of August,
2005.

WD Sets January 26 for Second Quarter Fiscal 2006 Financial Results Conference Call and Webcast

LAKE FOREST, Calif., Jan.westerndigital.

File system data formats are technical descriptions on how the information can be accessed.

stored disks

16 defects in July of 2005. The call
will be accessible live and on an archived basis via the link below:
Audio Webcast: http://www.

scenarios developerworks

6. Today 's findings on the
newest Linux kernel 2.9
which have resulted from Coverity's analysis.

Study Availability
Summary findings of number of defects by type are immediately available to
the press and general public from Coverity.

About Coverity
Coverity (http:/ /www.com), makers of the world's most advanced and
scalable source code analysis solution for pinpointing software defects and
security vulnerabilities, is a privately-held company headquartered in San
Francisco .com. 30, 2005, after the close of
market on the NYSE on Thurs.m. Visit the Investor section of the company's Web site
(http://www.

In order for computers to store information on hard drives, floppy disks, cds, tapes, etc otherwise known as electronic media, the computer has to understand where the information is stored and how to read that information.

accessed file

0, and found six potentially critical
defects in the core filesystem and networking code. (NYSE: WDC) today announced that the company will release its financial
results for the fiscal second quarter ended Dec.

fat32 disks

Technical details on specific
defects are available to active Linux kernel developers.

accessed compact

m. 26, 2006.

formats fat32

6.com/investor -- click on "Conference
Calls "
Telephone Replay: 800-860-4710 (toll-free) or +1-203-369-3368
(international)

About WD
WD, one of the storage industry's pioneers and long-time leaders, provides
products and services for people and organizations that collect, manage and
use digital information.